.yy-knowledgebase-retrieval {
	.contract-upload-list-content{
		width:600px;
		height:250px;		
		word-wrap: break-word;
		overflow-x: hidden;
	}
	.contract-upload-list {
	  display: inline-block;
	  width: 60px;
	  height: 60px;
	  text-align: center;
	  line-height: 60px;
	  border: 1px solid transparent;
	  border-radius: 4px;
	  overflow: hidden;
	  background: #fff;
	  position: relative;
	  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.2);
	  margin-right: 4px;
	}
	.contract-upload-list-text {
	  width: 100%;
	  height: 100%;
	  overflow: hidden;
	}
	.contract-upload-list-cover {
	  display: none;
	  position: absolute;
	  top: 0;
	  bottom: 0;
	  left: 0;
	  right: 0;
	  background: rgba(0, 0, 0, 0.6);
	}
	.contract-upload-list:hover .contract-upload-list-cover {
	  display: block;
	}
	.contract-upload-list-cover i {
	  color: #fff;
	  font-size: 20px;
	  cursor: pointer;
	  margin: 0 2px;
	}
}